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coldgirl [10]
2 years ago
15

Define First Condition of Equilibrium ??​

Physics
2 answers:
Harrizon [31]2 years ago
8 0

Answer:

<u>First Condition of Equilibrium :</u>

The net force in all direction must be zero

         Sum of all force = 0  or  net F = 0

Explanation:

Examples :

  • Book lyinh on table
  • Picture hanging on a wall
  • A paratroper coming down with terminal velocity
spayn [35]2 years ago
7 0

Answer:

First Condition of Equilibrium is that it must be experiencing no acceleration or the external forces acting on the body should be zero.

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Answer:

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Explanation:

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An astronaut's training centrifuge has a radius of 4.0m. If it goes round once every 2.5s, calculate the velocity of the end of
alexandr1967 [171]

Answer: 10.048m/s

Explanation:

We know that the radius is r = 4.0m

And for rotating things, the tangential velocity (or the velocity of the end of the centrifuge arm) can be calculated as:

v = r*w

The period is T = 2.5s,

This means that if sin(w*t) describes this situation, we have that:

sin(w*t) = sin(w*(t + T))

and we know that:

sin(w*0) = 0

sin(w*(0 + T)) = Sin(w*T) = 0

this means that w*T = 2*pi

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v = r*w = 4.0m*2.512hz = 10.048m/s

6 0
3 years ago
How much extra water does a 147-lb concrete canoe displace compared to an ultralightweight 38-lb kevlar canoe of the same size c
romanna [79]

We use the formula, to calculate the volume of water displaced by concrete canoe,

V =\frac{W}{\gamma }

Here, W is the weight of concrete canoe and \gamma is the specific weight of water and its value is 62.4\ lb/ft^3.

So,

V =\frac{ 147\ lb}{62.4\ lb/ft^3}=2.356\ ft^3.

Now the volume of water occupied in ultra lightweight kevlar canoe,

v=\frac{w}{\gamma}

Here, w is weight of  kevlar canoe.

So,

v=\frac{38\ lb}{62.4\ lb/ft^3} =0.6089\ ft^3

Thus, the volume of water displaced,

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Hence, the volume of water displaced canoe compared to an ultra-lightweight  kevlar canoe is 2.19\ ft^3

5 0
2 years ago
Define 1 joule work ?​
Nina [5.8K]

Explanation:

Force is applied to lift a body against the force of gravity. Example: If an object is lifted to a certain height (h)

4 0
2 years ago
StA
sweet-ann [11.9K]

the Answer is 91  meters

3 0
2 years ago
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